. >> reporter: diane, starting tomorrow morning, president obama will be chaining full-time, full steam ahead, going to wisconsin, colorado, nevada, three cities in ohio, and diane, that's just thursday and friday. >> all right, thank you, jake. >>> and what about governor romney? what does he plan to do as the race enters the final stretch? abc's jonathan karl tells us about that. >> reporter: mitt romney was back on the campaign trail again today in florida -- but with a twist. gone was any criticism of the president, replaced with talk of unity. >> look, we can't go on the road we are on. we can't change course in america if we keep on attacking each other. we have got to come together and get america on track again. >> reporter: recent polls in florida show the race here in a dead heat. romney's most prominent florida supporter told us it is hard to imagine him getting elected if he doesn't win here. >> i think it's very important to win and obviously difficult to come up with a formula for victory, i am sure there is one, but let's not even try. let's win florida. >> reporter: just